advanced pathophysiology NR 507 final exam (CORRECTLY SOLVED)

Fat Soluble Hormones correct answers Steroids Water Soluble Hormones correct answers Need 2nd Messenger to transport across phospholipid membranes Pituitary Hormones correct answers TSH, GH, ACTH, FSH, LH, Oxytocin, ADH, Melanocyte Stimulating Hormone Anterior Pituitary correct answers Acct for 75% of total weight of pituitary gland. Three regions, pars distalis, parts tuberalis, and pars intermedia. Pars distalis is major component of Anterior Pituitary and source of Anterior Pituitary Hormones. Posterior Pituitary (neurohypophysis) correct answers Arises from 3rd ventricle of brain, consists of three parts, median eminence, pituitary stalk, and infundibular process (pars nervosa or neural tube). Median eminence is composed mainly of nerve endings of axons that arise primarily from ventral hypothalamus. Hypothalamic releasing Hormones in Posterior pituitary's median eminence. correct answers Includes 10 hypothalamic releasing hormones and neurotransmitters such as dopamine, norepinephrine, serotonin, acetylcholine, and histamine. Pituitary stalk correct answers contains axons of neurons that originate in the supraoptic and paraventricular nuclei of the hypothalamus. Hormones of posterior pituitary correct answers ADH, and Oxytocin (Peptide Hormones) ADH (antidiuretic Hormone) correct answers Major homeostatic function of posterior pituitary is control of plasma osmolality, as regulated by ADH Hypothalamic hormones and target tissues (Hypophysiotropic hormones) correct answers HORMONES: Thyrotropin Releasing Hormone (TRH), Gonadotropoin-releasing hormone (GnRH), Somatostatin, Growth hormone-releasing hormone (GHRH), corticotropin-releasing hormone (CRH), Substance P, Dopamine, Prolactin-releasing factor. TARGET Tissue: Anterior Pituitary Somatostatin correct answers Inhibits release of growth hormone and TSH Gonadotropoin-releasing hormone correct answers Stimulates release of FSH and LH Dopamine correct answers Inhibits synthesis and secretion of prolactin